Etymologies

Latin Lacōnicus, Spartan, from Greek Lakōnikos, from Lakōn, a Spartan (from the reputation of the Spartans for brevity of speech).

(American Heritage® Dictionary of the English Language, Fourth Edition)

From Latin Lacōnicus ("Spartan"), from Ancient Greek Λακωνικός (Lakōnikos, "Laconian"). Laconia was the region inhabited and ruled by the Spartans, who were known for their brevity in speech. (Wiktionary)

Examples

He brings a new meaning to the word laconic and his choice of words is as accurate as his spicing.

At its best, "Cop Diary" recalled the old New Yorker - not the famously twee New Yorker of the Shawn era, glorious as that could be, but an older old New Yorker, a kind of laconic blarney with roots deep in Joseph Mitchell.